Analysis of Wheel-Rail Friction Heat Performance of 25CrMo4 Material

2020 4th Annual International Conference on Data Science and Business Analytics (ICDSBA) Pub Date : 2020-09-01 DOI:10.1109/ICDSBA51020.2020.00066

Zhenfa Bi, Tao Wu, Zongkai Wang, Pengli Fang

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Abstract

In this paper, the CRH3 train wheel set material 25CrMo4 is used for the simulation research. Through finite element simulation software ANSYS, the wheel-rail contact model is established. The direct coupling method is used for frictional heat-structure coupling to simulate the different sliding friction factors of the wheel set of 25CrMo4 material. Surface roughness, relative sliding speed and axle load are considered to be important factors affecting the sliding temperature rise between the wheel and rail. Surface roughness, relative sliding speed and axle load are considered to be the important factors affecting the temperature rise between wheel and rail. In this paper, through the control variable method, ANSYS software is used to control the same other variables, and the influence of one variable on the temperature rise between wheel and rail is studied respectively. It can be found from the results that friction factors, relative sliding speed and axle load rise will increase the temperature of 25CrMo4 material. The simulation analysis described in this article provides a simulation reference for the temperature rise in actual train operation.

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25CrMo4材料轮轨摩擦热性能分析

本文采用CRH3列车轮对材料25CrMo4进行仿真研究。通过有限元仿真软件ANSYS，建立轮轨接触模型。采用直接耦合法进行摩擦热-结构耦合，模拟25CrMo4材料轮对的不同滑动摩擦因数。表面粗糙度、相对滑动速度和轴载荷是影响轮轨间滑动温升的重要因素。表面粗糙度、相对滑动速度和轴载是影响轮轨间温升的重要因素。本文通过控制变量法，利用ANSYS软件对相同的其他变量进行控制，分别研究一个变量对轮轨间温升的影响。结果表明，摩擦系数、相对滑动速度和轴载升高会使25CrMo4材料的温度升高。本文的仿真分析为实际列车运行中的温升问题提供了仿真参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 4th Annual International Conference on Data Science and Business Analytics (ICDSBA)

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